Chamber-oven.



GOHMANN.

CHAMBER OVEN.

4APPLIOA'LION FILED AUG. su, 1912.

1,079,003 Patented Nov. 18, 1913.

A. GOHMANN.

CHAMBER OVEN. APLIUATION FILED AUG. ao, 1912.

Patented Nov. 18, 1913.

2 SHEETS-SHEET 2.

uw l 9 .ARTHUR GOHMANN, OF STETTN, GERMANY, ASBIGNR TO STETTINER CHAtO'lTE- FABRIK ACTIEN-GESELLSCHAFT VORMALS DIDIER, 01.*"y STETEIN, GERMANY, A

CORPORA'IIUN 0]? GERIVANY.

CHAMBER-OVEN.

Specification of Letters Patent.

Patented Nov. l 8, M913.

To all lto/toni [i muy mura/'fi Be it known thut I, ltirrnrn (loniIANN, n Subject of the 'lernntn llmperor, und u restdent of Stettin, tlermuny, hure invented eertuin ne und uselul improvements in Chumher-Ovens, ot' which the 'following` is u operitieution,

illy pre ent invention hns :for its ohjeet to provide un improved urrungement olil heating lines und their eonneetiotns in u ehumher oren such as ure used in the ununxtucture ot' eolie, for the purpose of seeurtligl u ver)v unit'orm heating' ell'eet. 'l`he invention hns heen de vised inirtirulurly for une in ehumher ovens having upright t'humheis tuperinp; from the bottom towurd the top7 und horizontul or longitudinul heuting lues through which the coniliustion producto puSs ooustuntly 1u thtl seme direction. ln ehuniher ovens of this type, the .superposed limiting" lines hure sometime` heen t-oinieeted in patire, the two YIhre` of euch pair eommuuit'utitnf :it one end hy means of a duct; the lower flue ot' eueh pair wus Connected with ineuns tor supply ing fuel (gus) und nir thereto ut the other end, while the upper flue of euch puit' wus connected, at; the end distzuut .from the eonneeting duet, with :1, ehunnel or tine for eurrying away the ott-euses. In this construetion, therefor@fresh tuel Supplied to the lower tine ol euch pair, whereus the upper tine of euch pair will receive the oil-ruses or combustion produets trom the eoinpunion lower flue. lt auch un oren is operuted with the combustion genen tlowing eonstuntly in the sume direction tthut is to sur, without periodical revel-nul), the tilting operution will proceed unevenly, euperiullr in the lower portii'uts ot the rokiue' rhrnnhtrs, und the operntion ol the oven will. therefore not he eeouotuirul.

lVhen my present invention its upplied to :L ehumber oren of the uhorwindieuttd type, the defect just refetrtd to it; ui'oitled h y urrangingl the limiting tlueu in ut leunt two superposed s rroups or sete, the [hieA oil the uw per group heinel eonnerted ut one end with oilgt flues or wunte linen, und the flutti; oli the other (lower) group heini! connected ut the Corresponding end, with duets,` for nupplying nir and fuel (gus): :it their other ends, all the heating lines otl hotli gljroups ure eonuectetil hy u eonnnon enveying clntnnel in sueh it nnuiner that; fresh fuel und nir will pass eonatuntly in the sinne direction through the flue oit' the lower group, while the olf- ;uses or Combustion products from the Suid lower group ot lines will tlow constantly in the sinne direction through the lines ot the upper group. With thin improved arrange- 1nent,u wry thorough utilinution of the heut ol the romlnhtion gustas is obtained, the lower portions ot the eoltiug ehumhers being heuted more .strongly thun their upper portions, in :ueot'duiu:e with the npwurd tnper inel ol` uuid riutmheru, :io un to secure u uni- 'orm trouwt-sion ot' roul into eolie und un et'onomitul operution olE the oven. ln order to t'urilitute un :nfeututo rogulution ol' the lient-intv etl'et't, l prtlt'r to provide :L third group ot' heutintr tluehhrtween the two lgrimpe lut-ntioiud uhore, so that the `@trueturtwill t'oinprin'e u lower group ol' heating liner; ifounet'ted ut one end `with duittorsupplvrine :tir und l'uel7 un upper group ot lines ronneeted ut one end with olf-gus titles, und un intermodiuie group ot thuis eonneited ut one end ulternutely (ueeording to the position ot vulves or other controllers) with otl`- gus duets or with duets l'or supplying luel und uit', while the other ende` o1' the lines of this iltteruiediute group ure ronnoeted with the uhorementioned Common conveying rhunuel in sut-h :t munner thut either fresh 'lttel or otlg'urru muir he emitted to pus through the h uiting: tluesv ot' the intermediate group.

A typieul exulnplo of u ehunil'ier oven embodying' 1nyinvention in shown in the ue.- eompunyingr druwings, in whieh- Figure l iS u Vertieul seetion through such un oren7 hilton on the line i\---lt ot Fig. Q; l. `i;. .j. Q is u horizoutul section, the upper portion ol Fig. 2 heine; tulten on the line CMD ol' ltin'. L the eentrul portion ou the line llll l" ol Fie'. L und the lower portion on the lille (il-"ll of liie'. l; und Fir'. 3 is u rortirul section` the lrl'tdiund portion ot hier. l heine' tuhtn ou line .IMK oi. Figi'. l, the rentrul portion on line lfm-'Ill ot Fig. l, und the right-hund portion on the line N-O ol' Fig. l.

rl"he tfhumher oven shown in the drawings in provided with upright gusitying' or eoliiner ohumher t (Figs. l und il) of u crossI- section deert-using' upwurtflly. AIn the heut-- ing wulls or purtitions Q which separate uit jneent oven ohunihers, I provide, for eaeh half of the oven, three groups of superposed horizontal or longitudinal heatingiiues 3,

il, and 5 respectively. When viewed in cross-section (Fig. 3), each heating Wall has two series 0r sets of heating iues each of ,y these sets lying adjacent to one of t elnger sides of one of the eoiting chambers separated by said Wall or partition. rlihe heating ues of one ovenhalf are separa ted from those of the other half by vertical partitions 6 disposed at the center of the oven. rlfhe heating flues of each half are not continued to the partitions 6, but gaps are left at the inner ends of the dues, thus forming convey-- ing channels 7 at each side of the partitions 6, to connect the inner ends of all the heating dues which are on the saine side of the partition 6 and belong to the same set or series.

2@ ln the side walls 8 of the oven, adjacent to the shorter sides of the coking chambers l, I provide airdistributing ducts 9 (Fig, 2) and off-gas ducts 10, regulatable by means of suitable controllers, such as the slides 11 and 12 respectively. rihe airdistributingl ducts 9 are connected with the outer ends of the heating tlues 3 and 4t of the lower group and of the intermediate group respectively, by means of short branch ducts 13 which may be regulated or even shut oitq by slides 1e or other appropriate devees. The ottgas ducts 1() are-"connected with the out/er ends of the heating tlues e and 5 of the intermediate group and of the upper group respectively, by means of short branch ducts l5 controlled by slides 16. ln addition to this, the heating lues 3 and 4 of the lower and of the intermediate group respectively are connected at their outer ends with uelf a@ supply ducts 17 containing, shut-oft` valves* or cocks 18 and connected in nairs with fuelsupply pipes (gas pipes) 20 each provided with a shut-ott valve 19. The pipes 20 are vertical and are connected, at the respective l ends of the oven, with horizontal fuel mains or gas mains 21.

The air-distributing ducts 9 and the od gas ducts 10 of each oven-half are connected with chambers or collectors and 23 respectively, and each ol these chambers, by the operation of reversing slides 24e closing the channels 25 and 26 alternately, is placed in communication with the regenerators 27 and 2S respectively in such a manner as to cause the air for support-ing combustion to pass constantly in the same direction through the chambers 22 and the ducts 9,.

while the ott-gases pass constantly in the f same VV'direction through the ducts 10 and the so chambers The slides 14 and 16 may be accessible for operation from the outside through suitable channels normally closed by plugs, such arrangement being well-known and therefore not shown in the drawings.

Lof/ence lThe operation oi the abovedescribed oven is as follows: ln the position illustrated by Fig. l, all the slides le controlling the branch aireducts 13 are open, the slides 16 controlling the branch ofi-gas ducts 'l5 of the upper group 5 of heating lines are also open, but the slides 16 controlling the branch oit-gas ductsl of the intermediate group 4: of heating dues are closed, while the cocks or valves 1.8 of all fuel-supply ducts 17 are open. The air for sup-- porting combustion enters one ot the re generators 2?, 28 in the usual way, and preheated therein. The air passes con stantly in the same direction through the ducts 9 and thus reaches the outer ends of the heating' fines 3 and l of the lower and the: intermediate group. Gas is supplied to the saine outer ends through the ducts il', and combustion takes lace in said heating lines. The .fresh com ustion gases travel through the heating iues 3 and fl from their outer ends to the center ot the oven, where they rise in the conveying channels oi"v the respective partitions 2., From the channels 7 the vcombustion products or oi gases pass into the heating dues of the up per group 5 and travel from their' inner ends to their outer ends, finally reaching branch ducts l5 and passing through the oli'A v gas ducts or lines 10 to one of the chambers 23 and thence through one of the regenerar` tors 27, 28, heating it in the welhlrnowl manner. lt will therefore be understood that fresh combustio gases pass ,through the heating dues of the lower group 3 and ot the intermediate grou 4, While oftgases travel through the heating fines 5 of the upper group. The lower and the intermediate ortions of the coking chambers 1 are ther-store subjected to a relatively strong heat, `as is desirable in view oft' the relaf tively large cross-section of these portions ot' the oven, while the upper nortions oit the oven, which have a smaller cross-section, are heated less strongly. Theheating; edect may be regulated in a manner correspond'- ingg to the upwardly tapering form of the cokingl chambers l, by opening the individ- 44.ual gas valyes 18 more or less, and by a'd jilsl'ingihe slides 14 and 16 so as to regulate on the one hand,`the edective crosssection of the b1anch'air-ducts 13 leading to the heating;` lues 3 ari l"\--` of the lower group and of the intermediate group respectively, and on the other hand, tle effective crosssoction of the branch ollgas duets leading 'from the heating lues 5 of the upper group.

Another mode of regulation, which mayV ze used in conjunction with the one de-V scribed above, consists 1n supplying oft"- gases instead' of fresh fuel, to 'all o1;v part oit the heating' flues 4 of the middle' or in* termediate "group, in the same manner in which the gtiues 5 of the upper group are iso or with the air and fuel supply ducts respectively, whereby the lues of the intermediate group may receive either fresh grises, or ogases from the lower group of fines.

3. A chamber oven having gasifying chambers und heating Walls for seid charm hers, sind 'wells containing longitudinal heating lines arranged in groups, a conveying channel connecting the like ends of all of said lines, ducts for supplying uel'and air to the other ends of a lower group of flues, and ol-gas ducts connected With the lues of an upper group at the ends dist-ent from said conveying;r channel.

4. An oven having gasitying chambers and heating .Wells for said chambers, Said Wells containing longitudinal heating flues arranged in three groups at different levels, a. conveying channel connecting like ends of the lues oit said three groups, ducts for supplying uel and :tir to the other ends of the flues of the lower und the intermediate groups, oil-gus ducts connected with/the lilies of the intermediate and upper groups at the ends distant from the said conveying channel, and devices for controlling the connection of the intermediate group of lines With the olif-gas ducts or with the air and fuel supply ducts respectively.

5. An oven having e gusifying chamber and :i heating wall therefor, said Wall conmuseos taining e series of heating dues arranged in three groups, e conveying channel connecting like ends of all the tlues of said series, ducts :tor supplying fuel und sir to the other ends of. the iiues ot one end group and the intermediate group, ott-gus ducts connected with the tueso the intermediate .group and of' the other end group at the ends distent from said conveying channel, and devices l'or controlling the connection o the intermediate group oit iues with Jche ofi-ges ducts or `With the air and uel supply ducts respectively.

6. An oven having e gasiying chamber 'and e heating Well therefor, said Wall containing a series of heating lines, a conveying channel connected .with all the llues of said series, ducts for supplying fuel and air, otf-gas ducts, some of said tlues being connected only with said supply ducts, others only With said odi-gas duets, andv still other liues being connected with ducts of both kinds, und devices Aifor controlling the connection oi the last-named iues "with the olif-gas ducts or with the supply ducts respectively. ln testimony whereof, l have hereunto signed my naine in the presence ot two subscribing Witnesses.

ARTHUR GHMNN.. VVitnesses c l'vlnnfrnn LANGE, EMIL SoHMinfn 

